Key Technological Research on the Control Survey of Qingzhou-Linshu Super Highway and the Aerial Photogrammetry of Topographic Map

2012 ◽  
Vol 170-173 ◽  
pp. 2870-2875
Author(s):  
De Bao Wang ◽  
Xue Ling Fang ◽  
Jun Huang ◽  
Zhao Bo Xing
Keyword(s):  
Coordinate System ◽  
Survey Design ◽  
Control Point ◽  
Observation Data ◽  
Topographic Map ◽  
Aerial Photogrammetry ◽  
Reconnaissance Survey ◽  
Vertical Datum ◽  
Highway Network ◽  
Leveling Control

Qingzhou-Linshu super highway, spanning 228.333km, is located in the center of Shandong province, which forms a south-to-north expressway channel. Undoubtedly, it’s an important part of Shandong highway network. Approximately, it runs from south to north and one projection zone is enough to satisfy relevant requests of horizontal coordinate system; From Qingzhou to Mazhan Town, Yishui County, most are hilly and mountainous terrain while from Mazhan Town, Yishui County to Linshu County, most are plain terrain, except for a few rolling terrain. As a result, fourth-order leveling control network is enough to meet the requirements of reconnaissance survey, design and constructive lofting. As the expressway and Ji-Qing south line carry out reconnaissance and design simultaneously and form an interchange at Mazhan Town, Yishui County, plus tight time and intense work, the systemic conformance of horizontal coordinate system and vertical datum are in high demand. The report analyses and discusses the adoption of horizontal and vertical network’s starting points, layout, observation, data processing and adjustment, together with eliminating the coordinate division and elevation value’s step of the same control point. In the meantime, it analyses how to make rapid aerial photogrammetry for the whole line with the scale of 1/2000, so as to improve the precision and reliability of horizontal and vertical datum as well as speed up the process of charting and utmostly satisfy the demand of highway reconnaissance and design.

Study on Key Technology in the Control Surveying of Jinan-Qingdao Highway’s South Line

2011 ◽  
Vol 90-93 ◽  
pp. 2853-2857
Author(s):  
De Bao Wang ◽  
Xue Ling Fang
Keyword(s):  
Coordinate System ◽  
High Precision ◽  
Survey Design ◽  
Control Network ◽  
Central Meridian ◽  
Key Technology ◽  
Primary Survey ◽  
Vertical Control ◽  
Vertical Datum ◽  
Selection Of

The south line of Jinan Qingdao highway (which is short of Ji-Qing south line) spans 281km, whose geomorphy is mainly composed by mountain lands and hills. Approximately, it runs from east to west and straddles several projection zones. Systemic conformance of its layout and measurement, high precision in company with multifunctional planes and vertical control nets make up this project’s key technological problems. The report tells of the selection of central meridian in different areas of Ji-Qing south line and the layout, observation, adjustment, height fitting and precision statistics of GPS control network; the layout, observation, adjustment and precision counting of vertical control nets; Meanwhile, it analyses and discusses that how to guarantee the systemic conformance of coordinate system and vertical datum, together with eliminating the division of points’ coordinates and elevation values’ steps when primary survey design are being made synchronously in two super highways or in different areas of the same expressway.

scholarly journals THE RESEARCH LAYOUT OF IMAGE CONTROL POINTS FOR 1:1000 B LEVEL DIGITAL ELEVATION MODEL PRODUCTION BASED ON UAV IN PLAIN AREA

2020 ◽  
Vol XLII-3/W10 ◽  
pp. 1057-1063
Author(s):  
P. W. Xing ◽  
Y. F. Yang ◽  
S. H. Tang ◽  
X. Zhang ◽  
Y. Zhang
Keyword(s):  
Digital Elevation Model ◽  
Control Point ◽  
National Standard ◽  
Control Points ◽  
Plain Area ◽  
Aerial Photogrammetry ◽  
Digital Elevation ◽  
Four Corners ◽  
Elevation Model ◽  
Leveling Control

Abstract. With the advent of the era of big data, traditional measurement techniques have been difficult to meet the information extraction required by contemporary measurement products, and light UAV （Unmanned Aerial Vehicles）was used to mapping is one of the development trends of aerial photogrammetry in China. When data is processed on aerial photography, the control points in the measurement area directly affect the accuracy of the later mapping results as the basis of mathematical calculation. However, the traditional aerial photogrammetry lays out the number of image control points according to a wide range of industry specifications, For example, lay Leveling control point at four corners + a row of elevation control points is lay at both ends of the area and lay Leveling control point at four corners + two vertical framed air routes at both ends of the zone (Zhang, J. Q., 2009),there are no specific method for the number of image control points to achieve a certain scale accuracy. As a result, there are too many or too few image control points in different topography and different scales. Measured by the error, image point density and reasonable layout of the data acquisition of the Trimble UX5 UAV, The causes of the errors are analyzed, and the precise data are obtained by comparing the experiments. Based on this, the relationship between changing the density of image control points and reasonable location is analyzed through the typical plain survey area of 0.718 km2. Designing four layout schemes of Image control points, taking the national standard as the standard, four groups of data are studied by comparing and analyzing GPS acquisition data with photogrammetry mapping data of Wuhan VISIONEK INC MapMatrix software. Through experimental analysis, the results show that the experimental data show that the light UAV can satisfy the production of 1:1000 B level digital elevation model in plain area when the image resolution is 350 dpi, the line height is controlled at 180 ± 10 m and the density of image control point is more than 9/km2. At the same time, this image control point layout method is used reasonably can reduce the workload of the field, improve work efficiency, and also help to speed up the calculation of huge amount of aerial survey data so as to produce high-precision digital products.

Static Positioning Technique For Ground Control Point Determination For Precise Mapping Using Unmanned Aerial System

2014 ◽  
Vol 71 (5) ◽  
Author(s):  
Nurul Husna Aziz ◽  
Anuar Ahmad ◽  
Nurul Faratihah Ibrahim
Keyword(s):  
Control Point ◽  
Conventional Technique ◽  
Ground Control ◽  
Mapping Technique ◽  
Unmanned Aerial System ◽  
Topographic Map ◽  
Ground Control Point ◽  
Aerial Photogrammetry ◽  
Precise Mapping ◽  
Gps Observation

Mapping can be intense and laborious with the current method in term of the work environment, manpower, cost, time, and obviously, the equipment used for the work. Traditional mapping technique uses photogrammetry, total station and GPS. The level for detailing and levelling is not convincing fast enough to catch up with the revolution of the world. However, aerial photogrammetry had been introduced to improve the mapping method in terms of accuracy, work done and speed. Unmanned Aerial System (UAS) is the latest realization of aerial photogrammetry to the mapping world. This technique is capable of mapping large area compared to conventional technique of mapping in short time with less work and effort, while the accuracy is maintained. This paper highlights the capability of UAS to replace the conventional technique of mapping. To test the accuracy of this product, the technique used in determining the ground control point (GCP) is studied. The accuracy of GPS plays big impact in the accuracy of the map produced, due to its role in establishing the GCP for the map. In this study, the conventional technique in determining the GCP is hereby replaced with better technique to produced better accuracy. The technique of GPS observation used is static with network processing which is never been used before in UAS. The concept here is the accuracy of map is improved by improving the accuracy of GCP. Furthermore the technique of GPS observation determined the accuracy of GCP. This paper, presents a new procedure using UAS for precise mapping and this method is expected to replace the conventional technique of producing topographic map.

scholarly journals Analysis of the Effect of Different Combinations of Observation Satellites on the Resolving Accuracy of GNSS Observation Data

2020 ◽  
Vol 206 ◽  
pp. 03025
Author(s):  
Junze Wang ◽  
Maohua Yao ◽  
Wenting Zhou ◽  
Xiangping Chen
Keyword(s):  
Measurement Accuracy ◽  
Control Point ◽  
Satellite System ◽  
Base Stations ◽  
Observation Data ◽  
Control Points ◽  
Level Control ◽  
Satellite Systems ◽  
Beidou Navigation Satellite System ◽  
Stable Measurement

In this paper, 24 C-level control points under different terrain conditions were selected to be the testing points. The binary-satellite system (GPS+GLONASS) and the triple-satellite system with BeiDou Navigation Satellite System (BDS) (BDS+GPS+GLONASS) were adopted for static measurement; and the observation data from BeiDou Ground-based Augumentation System (GBAS) base stations in Guangxi were collected for solution. By comparing the residuals of GPS tri-dimensional baseline vectors and the internal accord accuracy of each control point under the binary and triple-satellite systems, the effect of data collected by different satellite systems under different terrain conditions on measurement accuracy was studied. According to the results, (1) the triple-satellite system with BDS showed more stable measurement accuracy; (2) in plane, the two systems were of equivalent measurement accuracy in mountainous and flat areas; in elevation, the triple-satellite system showed higher and more stable measurement accuracy.

Influencing of Coordinate Transformation on Based CGCS2000 on Topographic Map with Large Scales

2014 ◽  
Vol 522-524 ◽  
pp. 1207-1210
Author(s):  
Qing Wu Meng ◽  
Lu Meng
Keyword(s):  
Coordinate System ◽  
Coordinate Transformation ◽  
Grid Point ◽  
Three Dimensional ◽  
Transformation Model ◽  
Topographic Maps ◽  
Topographic Map ◽  
Transformation Parameters ◽  
Coordinate Changes ◽  
Three Dimensional Coordinate

Using three dimensional coordinate transformation model with 7 parameters the coordinate transformation parameters are solved. Comparing the coordinates of the kilometer grid point on topographic maps in Beijing54, Xian80 and Urban Independent Coordinate System with the observation coordinates of same point inCGCS2000, Through watching their coordinate changes the moving changes regularity on topographic maps are discovered between Beijing54 and CGCS2000, between Xian 80 and CGCS2000, Urban Independent Coordinate System and CGCS2000

scholarly journals A LIBRATION MODEL FOR ENCELADUS BASED ON GEODETIC CONTROL POINT NETWORK ANALYSIS

2016 ◽  
Vol XLI-B4 ◽  
pp. 459-462 ◽  
Author(s):  
I. E. Nadezhdina ◽  
A. E. Zubarev ◽  
E. S. Brusnikin ◽  
J. Oberst
Keyword(s):  
Network Analysis ◽  
Coordinate System ◽  
Control Point ◽  
Image Data ◽  
Control Points ◽  
Global Control ◽  
Cartesian Coordinates ◽  
Voyager 2 ◽  
Librational Motion ◽  
Geodetic Control

A new global control point network was derived for Enceladus, based on Cassini and Voyager-2 image data. Cassini images were taken from 2005 to 2014, for Voyager we have only one flyby in the middle of 1981. We have derived 3D Cartesian coordinates for 1128 control points as well as improved pointing data for 12 Voyager and 193 Cassini images in the Enceladus-fixed coordinate system. The point accuracies vary from 55 m to 2900 m (average point accuracy – 221 m). From tracking of the control points we detect a librational motion described by a model which includes 3 different periods and amplitudes (Rambaux et al., 2011). We determine the amplitudes for each term. Our new control point network has a higher number of point measurements and a higher accuracy than previous data (Giese et al., 2014).

scholarly journals Direct georeferencing with correction of map projection distortions for active imaging

2016 ◽  
Vol 15 (1) ◽  
pp. 35-45
Author(s):  
Zdeněk Švec
Keyword(s):  
Horizontal Distance ◽  
Active Sensors ◽  
Map Projection ◽  
Aerial Photogrammetry ◽  
Vertical Datum ◽  
Ground Point ◽  
Active Imaging ◽  
Passive Sensors ◽  
Cartesian Coordinate ◽  
Observation Vector

In aerial photogrammetry, the Cartesian coordinate system for the description of object space is commonly used. In contrast, many projects have to be processed in the space combined by the composition of a map projection and Vertical datum. In that space, some geometric deformations exist. There are some compensative methods for active and passive sensors. In the case of active sensors, decomposition and the correction of observation vector for each ground point can be used. We obtain height, horizontal distance and horizontal angle in this process. All of these values should be corrected for precise georeferencing. The contribution deals with the derivation of the corrections and gets some theoretical values from the area of the Czech Republic.

Solid waste dumping site analysis using GIS and remote sensing: Bonga Town, Southwestern Ethiopia

2021 ◽  
pp. 0734242X2110606
Author(s):  
Dereje Biru Debalke ◽  
Tesfahun Endalew Admas
Keyword(s):  
Solid Waste ◽  
Spatial Resolution ◽  
Control Point ◽  
Well Being ◽  
Landsat 8 ◽  
Topographic Map ◽  
Gis And Remote Sensing ◽  
Waste Landfill ◽  
Southwestern Ethiopia ◽  
Environmentally Sound

The main objective of this study was to select potential solid waste landfill areas suitable for Bonga Town that are environmentally sound. The key data were LANDSAT 8 and SPOT-6 satellite images with a spatial resolution of 15 and 1.5 m, respectively; a digital elevation model with a spatial resolution of 30 m; and a ground control point, which was collected through a ground point survey and a topographic map of the study area. Each parameter was subjected to a peer review according to the analytical hierarchy process. Once the weights were established, the weighted overlap analysis was determined, which combined these criteria and classified them into high, medium, less suitable and inappropriate regions of the study area. The results show that 75.65% of the study area is not suitable for the solid waste landfill, 18.86% less suitable, 5.17% moderately adequate and 0.3% very adequate. Therefore, the ability to use inaccessible geological information framework and detection innovations for mandatory discrimination evidence for a reasonably robust waste dump will minimise opportunities and natural human well-being problems.

scholarly journals Research on the Trajectory Model for ZY-3

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Yifu Chen ◽  
Zhong Xie
Keyword(s):  
Control Point ◽  
Polynomial Model ◽  
Topographic Map ◽  
Trajectory Data ◽  
Data Set ◽  
Trajectory Model ◽  
Bundle Block Adjustment ◽  
Interpolation Accuracy ◽  
Cubic Polynomial ◽  
New Generation

The new generation Chinese high-resolution three-line stereo-mapping satellite Ziyuan 3 (ZY-3) is equipped with three sensors (nadir, backward, and forward views). Its objective is to manufacture the 1 : 50000 topographic map and revise and update the 1 : 25000 topographic map. For the push-broom satellite, the interpolation accuracy of orbit and attitude determines directly the satellite’s stereo-mapping accuracy and the position accuracy without ground control point. In this study, a new trajectory model is proposed for ZY-3 in this paper, according to researching and analyzing the orbit and attitude of ZY-3. Using the trajectory data set, the correction and accuracy of the new proposed trajectory are validated and compared with the other models, polynomial model (LPM), piecewise polynomial model (PPM), and Lagrange cubic polynomial model (LCPM). Meanwhile, the differential equation is derivate for the bundle block adjustment. Finally, the correction and practicability of piece-point with weight polynomial model for ZY-3 satellite are validated according to the experiment of geometric correction using the ZY-3 image and orbit and attitude data.

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